GitPython 3.1.59 fails to restrict the --no-index option in the high-level diff API, allowing attackers to read arbitrary filesystem paths as repository operands. Attackers can combine --no-index with -I/--ignore-matching-lines to create a content-dependent Boolean oracle, repeatedly querying local files to recover single-line secrets through distinguishable success or error responses.
History

Thu, 10 Sep 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-73
References
Metrics threat_severity

None

threat_severity

Moderate


Wed, 09 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 09 Sep 2026 11:30:00 +0000

Type Values Removed Values Added
Description GitPython 3.1.59 fails to restrict the --no-index option in the high-level diff API, allowing attackers to read arbitrary filesystem paths as repository operands. Attackers can combine --no-index with -I/--ignore-matching-lines to create a content-dependent Boolean oracle, repeatedly querying local files to recover single-line secrets through distinguishable success or error responses.
Title GitPython 3.1.59 Local File Content Oracle via --no-index
First Time appeared Gitpython Project
Gitpython Project gitpython
Weaknesses CWE-88
CPEs cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:*:*:*
Vendors & Products Gitpython Project
Gitpython Project gitpython
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-09-09T11:21:04.681Z

Updated: 2026-09-09T14:06:49.761Z

Reserved: 2026-09-09T10:32:34.109Z

Link: CVE-2026-87818

cve-icon Vulnrichment

Updated: 2026-09-09T14:06:46.202Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-09T12:17:16.980

Modified: 2026-09-09T20:41:07.123

Link: CVE-2026-87818

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-09-09T11:21:04Z

Links: CVE-2026-87818 - Bugzilla